<!---------------------------FORMULARIOS--------------------------------------->

<div class="container-fluid">
    <div class="row-fluid">
        <div class="span12">
            <div class="row-fluid">
                <div class="alert alert-block">
                    <button type="button" class="close" data-dismiss="alert">&times;</button>
                    <h4>Error</h4>
                    <?php echo $mensaje ?>
                </div>
                <div class="row-fluid">
                    <a class="btn btn-large btn-primary" href="<?php echo $url ?>">Volver</a>
                </div>
            </div>
        </div>
    </div>